:root {
    --bg-main: #0D0D0F;
    --bg-sec: #141619;
    --bg-card: #1F2226;
    --border-color: #2A2E33;
    --accent: #FFB000;
    --accent-hover: #e09b00;
    --text-light: #ffffff;
    --text-muted: #a0a0a0;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-body);
    color: var(--text-light);
    background-color: var(--bg-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; }
img { max-width: 100%; display: block; border-radius: 4px; }

.container { width: 90%; max-width: 1100px; margin: 0 auto; }
.section-padding { padding: 80px 0; }
.text-center { text-align: center; }

h1, h2, h3 { font-family: var(--font-heading); font-weight: 500; }
h1 { font-size: 1.8rem; line-height: 1.3; margin-bottom: 1rem; letter-spacing: -0.5px; }
.section-title { font-size: 1.6rem; line-height: 1.3; margin-bottom: 1rem; letter-spacing: -0.5px; }
.section-subtitle { font-size: 1rem; color: var(--text-muted); font-weight: 300; margin-bottom: 2rem; }
.text-accent { color: var(--accent); font-weight: 700; }
p { font-size: 0.95rem; color: var(--text-muted); font-weight: 300; }

.divider { width: 40px; height: 3px; background-color: var(--accent); margin: 1rem 0; }

.bg-main { background-color: var(--bg-main); }
.bg-sec { background-color: var(--bg-sec); }

.btn {
    display: flex; align-items: center; justify-content: center;
    width: 100%; padding: 14px 24px;
    font-family: var(--font-heading); font-weight: 700; font-size: 0.9rem;
    text-transform: uppercase; letter-spacing: 1px; border-radius: 4px;
    transition: all 0.3s ease; cursor: pointer; border: none;
}
.btn-primary { background-color: var(--accent); color: var(--bg-main); }
.btn-primary:hover { background-color: var(--accent-hover); }
.btn-outline { background-color: transparent; border: 1px solid var(--border-color); color: var(--text-light); }
.btn-small { width: auto; padding: 8px 16px; font-size: 0.8rem; }

.navbar {
    position: fixed; top: 0; width: 100%; padding: 15px 0;
    background: rgba(13, 13, 15, 0.95); backdrop-filter: blur(8px);
    z-index: 100; border-bottom: 1px solid var(--border-color);
}
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; letter-spacing: 1px; }
.logo span { font-weight: 300; color: var(--text-muted); }

.hero { position: relative; height: 100vh; display: flex; align-items: center; overflow: hidden; }
.video-background { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.video-background iframe {
    width: 100vw; height: 56.25vw; min-height: 100vh; min-width: 177.77vh;
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.hero .overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(13, 13, 15, 0.9) 0%, rgba(13, 13, 15, 0.4) 100%);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; margin-top: 50px; }
.hero-content p { margin-bottom: 2rem; color: #dedede; max-width: 90%; }

.grid-layout { display: grid; grid-template-columns: 1fr; gap: 20px; }

.minimal-card { border-left: 2px solid var(--border-color); padding-left: 20px; padding-bottom: 20px; }
.card-number { display: block; font-size: 0.8rem; color: var(--accent); margin-bottom: 5px; font-family: var(--font-heading); }
.minimal-card h3 { font-size: 1.2rem; margin-bottom: 5px; }

.service-card { background-color: var(--bg-card); border: 1px solid var(--border-color); padding: 30px 20px; }
.service-card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--accent); }

.media-card { position: relative; height: 280px; overflow: hidden; border-radius: 4px; }
.media-card img, .media-card iframe { width: 100%; height: 100%; object-fit: cover; border: none; }
.media-card iframe { pointer-events: none; transform: scale(1.35); }
.media-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%;
    padding: 20px; background: linear-gradient(transparent, var(--bg-main));
    z-index: 2; pointer-events: none;
}
.media-overlay h3 { font-size: 1.1rem; margin: 0; }

.portfolio-grid { display: grid; grid-template-columns: 1fr; gap: 15px; }
.portfolio-item { border-radius: 4px; overflow: hidden; }
.portfolio-item img { width: 100%; }
.youtube-portfolio iframe { width: 100%; height: 450px; border: none; }

.step-list { display: flex; flex-direction: column; gap: 30px; margin-top: 2rem; }
.step-item { display: flex; align-items: flex-start; gap: 15px; }
.step-num { font-size: 1.5rem; font-family: var(--font-heading); line-height: 1; }
.step-item h3 { font-size: 1.1rem; margin-bottom: 5px; }

.footer { padding: 40px 0; border-top: 1px solid var(--border-color); }
.footer p { font-size: 0.8rem; margin-top: 10px; }

.whatsapp-float {
    position: fixed; bottom: 20px; right: 20px;
    background-color: var(--bg-card); color: var(--accent);
    border: 1px solid var(--border-color); width: 50px; height: 50px;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    z-index: 1000; box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

@media (min-width: 768px) {
    h1 { font-size: 3rem; }
    .section-title { font-size: 2.2rem; }
    .hero-content .divider { margin: 1.5rem 0; }
    .btn { width: auto; display: inline-flex; }
    .grid-layout { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .featured { grid-column: span 2; }
    .youtube-portfolio iframe { height: 600px; }
}

@media (min-width: 1024px) {
    .grid-layout { grid-template-columns: repeat(4, 1fr); gap: 30px; }
    .problem-grid { grid-template-columns: repeat(3, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
    .featured { grid-column: span 1; grid-row: span 2; }
}